Boring-machine.



2 SHEETS-SHEET 1.

Patented Dec. 16, 1913.

BORING MACHINE.

APPLICATION FILED NOV.11, 1912.

G. P. PENN SL P. P. RAND.

COLUMBIA PLANOGRAPH co.. WASHINGTON. n. cA

C. F. PENN L F. P. RAND.

BORING MGHINE.

APPLIATION FILED NOV. 11, 1912. 1,081,552 Patented Dec. 16, 1913.

2 SHEETS-SHEET 2.

v n Snom/Wow COLUMBIA PLANDGRMH :@WASHINGTOM D. cA

NFFEB STATES @PAEN 1i FFQE.

CHARLES F. PENN AND FRANK P. RAND, OF SPOKANE, WASHINGTON.`

BORING-MACHINE.

T 0 all wiz-0m 25 may concern.'

Be it known that We, CHARLES F. PENN and FRANK P. RAND, citizens of the United States, residing at Spokane, in the county of Spokane and State of Vashington, have invented certain new and useful Improvements in Boring-Machines, of which the following is a specification.

Our invention relates to improvements in boring machines, the present embodiment of the invention being particularly designed and adapted for use as a stump boring machine for boring the vertically extending centrally located iiue hole and the intersecting laterally extending draft and vent holes, one of the latter being adapted to receive and contain a stump burner of the character disclosed in Patent No. 1,002,752, issued to Frank P. Rand, September 5th, 1912.

The primary obj ect of the invention is to provide a generally improved boring machine of this class adapted to be readily mounted upon and attached to the stump in either a vertical or laterally extending position for boring the vertical and lateral holes desired for use in connection with the burning of the stump as above referred to, and provided with improved auger actuating' and withdrawing mechanism together with improved force feed or clutch mechanism adapted to start the auger and also force it through soft or decayed portions of the stump where the auger would not otherwise take hold without the use of such force feed mechanism.

iith the above mentioned and other ends in view, the invention consists in the novel construction, arrangement, and combination of parts, hereinafter described, illustrated in one of its embodiments in the accompanying drawings, and particularly pointed out in the appended claims.

Referring to the drawings forming a part of this specification, Figure 1, is a perspective view of the improved boring machine in its initial boring position mounted upon and attached to a stump for boring a vertical centrally located hole in the latter, the force feed auger mechanism or clutch being in closed or operative position. Fig. 2, a detailed fragmentary view of one of the angle bar side members of the machine frame showing in detail the manner of attaching the upper ends of the frame sup- Speecation of Letters Patent.

Application led November 11, 1912.

Patented Dec. 16,1913. Serial No. 730,588.

porting anchor rods to the side members of said machine frame. Fig. 3, a similar view, showing the adjustable connection between the supporting yoke members and the side members of the machine frame. Fig. 4, an enlarged cross sectional view of the machine frame taken on line 4 4 of Fig. 1, the auger actuating gear mechanism being shown in top plan and the auger elevating or withdrawing gear being in gear or mesh with the auger driving gear for actuating the cable winding spool or drum and thereby withdrawing or elevating the auger from the bored hole. Fig. 5, a front elevation of the auger actuating gear mechanism, the force feed auger mechanism being in closed or operative position. Fig. 6, a view of the under or bottom side of the machine frame, the forced feed auger or clutch mechanism being partly in section for the purpose of clearer illustration of the parts. Fig. 7, a similar view, the parts of the force feed or clutch mechanism being shown in released position. Fig. 8, an outline view of the improved boring machine mounted upon and attached to a stump for boring one of the side or lateral holes in the stump to intersect the first bored or centrally located draft hole or flue above referred to. F ig. 9, a detailed central sectional view of the threaded auger driving spindle or shaft and the actuating gear together with the intermediate connections.

Similar numerals of reference designate like parts throughout all the figures of the drawings.

The improved boring machine comprises a main frame made up, in the present instance, of angle bar side member 1, connected by means of cross members 2, bolted or otherwise suitably secured thereto.

The main frame is provided with an adjustably mounted supporting yoke consisting, in the present instance, of supporting side members 3, terminating in anchor points 3a, adapted to be driven into the stump or other material being operated upon, the lower ends of said side or yoke members 3, being provided with an adjustably mounted auger guide head 1, and the upper ends of said side members being provided with guide slots 3", adapted to receive and contain adjusting bolts 5, carried by the lower ends of said side members 1, of the main frame.

As a means for ,supporting `and anchoring.

the machinewframe inqany desired position,

as for eXample,-in a vertical position as shown in Fig. 1, or in a lateral nor rhorizontally extending position as shown in Fig. 8,

brace or anchor rods 6, 7, and 8, ane .pro-

vided, the upper ends of Athe side rods 'G ,f being bent as at 6a, to extend through holes, orop'enings in the-angle Ibar members 1, and

the rear rod 7, being bentias at 7 3, :to extend through the intermediate cross member 2,

- maybe driven into 4:the stump ormaterial in ,Y the spindle or shaft 13, l'during the lrevoluan'obviousmanner.

,As a means for revolving ordriving the auger ,12, `-and giving thelsame Aa :forced feed when desired, Las well as for `withdrawing the same from lthebored holea longitudinally Jmovable ,threaded auger `driving spindle or shaft 13, is provided, said-,threaded spindle being provided at-itslowenend :with

a chuck 13, toreceive andl contain the shank `portion of the augerand ,at itsupper end with a swivel member 14,-connected to al cord o r cable1'5,thelatter passing-over apulley 16, at the upper end ofthe main; frame A andv thence downwardly and connect- ,eid-to awinding spool 17 ,l (seeFi-g-4) can; ried upona-gearshaft 18, whichlatter is@A operated, as hereinafter described.

permitting fthe` longitudinal movement of tion of the latter, the gear 19, is providedwith'oppositely arranged key or guide members 22, seated in oppositely arranged guide' ways or grooves 13b,oftheaugerudriving spindle or sha-ft 13, theshaft 10, being adapt-f ed to be operated, in the present: instance, ,byI

means of a crank 22a.

They gear shaft 18, carrying the cable winding-member 17, is. provided with a lon-1 :gitudinallymovable gear 23, thelatter being retained in the position shown inIFig.f 1,'bywmeans of an arm 24a, of a gear shift-1 ing lever 24, and when it is 'desiredlto elevate or withdraw the auger driving spindle l ,or shaft 13, and the auger carried by the latter from the hole being bored, the-lever member 24, may be elevated whereby the arm 24a, willv clear theggear23,V andthe latterffmay be shiftediforwardlyuponthe angeler portion-- .Qt the Shaft i187 rhesus@ the medium; .af-italie rlQop, member' eee, thereby bringing the gear 23, into mesh with the Sivurseelis ai the ,gear 19,7 Miter which the levermember 24, may be dropped down at the-,negn of the gear 23, as shown in Figs. 1 and 5, whereby the continued movement of the,eraig-ik,223-, and the crank shaft 1and driving mechanism will actuate the gear 23, and

`winding spool or member 17, thereby elevating or withdrawing the auger spindle or shaft 13, and auger carried thereby, 1n an l, obvious manner and to itsinitial position,

asf-indicated `in ig. '1.

As ya -mean-s for giving the auger 1 2', 'a force feed, l,as in passing y'through softy wood' or:decayed--pontions-fthereof, an auger force feed `or? clutch mechanism is provi-ded at the lower end of the frame, said force `-feed, or o lutch .mechanism consisting, inthe present inst-ance,l of a pair vof ypjivotally mounted ,clutch-members 25, secured beneath the ylowerieross member 2, lof the frame, said clutch-members being provided with threaded portions 25a, adapted -to be brought linto g operative contact with the spindle v"or y shaft 153,;as-shownfin iFig. 6, for the -force feed op- `.eration of the latter, as `shown `in Fig.y 6, or ,to --be^thrown out vof contacter engagement with the -spindleor shaft 13, as shown in `yFig. 7, for the ordinary operation of the auger Orl-for Vthe withdrawal ,of theV ,auger and spindle shaft 113, as -hereinbefore eX- lplai-ned. As .ag-means for positively open- ;ing -or closing said clutch members25, the ,free ends oflthe--latterare provided with beveled portions 25h, and notchedportions As a means for driving the r augergspindle; or shaft -13, the crankshaft l10, is provided Switha ,compound or fbevel-spur .fgear 19,2- meshing-,with a secondbevelqgear 20, mountedfin-a bearing opening.21,f(see Fig. 9) ofi. the lower cross member 2. As ameans fori 2 5?, being adaptedto receive and contain xan intermediate pivoted .actuatingmember 26, ,said actuating'V member 26, being provided with a beveled or'wedge-shaped'portion 26, Esaid actuating member 26, being pivotally I,connected to anioperating-'handle 27, where- ,byA byforcingthe handle 27, intxoionef'direc- Ition, the-notched or socket portion27'forf the handle will come into engagement with the beveled portions 25h, of the free ends of the clutch members2'5, andforcethe latter together as shown inFig.- 6, thepartsbeing held in such locked or ,feedingpositionof ,the-feed clutch mechanism by means of -a latch member 28, adapted to .engage with' the adjacent side yoke member ,3, as shown in Fig. 6, ofthe drawings.`

'WVhen it is :desired to move ,the clutch members25, out of contact with the, threaded spindle or Shaft'13, forI releasing thel latter,vthe handle 27, is moved to fa reversed position after disengagement ofthelatchE outwardly or awaylffroin A,otlieras illuslio lip

trated most clearly in Fig. 7, of the drawings.

From the foregoing description, taken in connection with the accompanying drawings, the operation and advantages of our invention will be readily understood.

Having thus described one of the embodiments of our invention, what we claim and desire to secure by Letters Patent is,-

l. In a boring machine, a main frame, brace anchor rods detachably connected thereto, a supporting yoke adjustably secured to the lower end of said main frame and terminating in anchor points, and an adjustable auger guide-head carried by said yoke in proximity to said anchor points.

2. In a boring machine, a main frame, a supporting yoke adjustably and detachably connected thereto and provided at its lower end with anchor-points, and an adjustable auger guide-head carried by said yoke in proximity to said anchor noints.

3. In a boring machine, a main frame consisting of side members and cross members, and an adjustably mounted supporting yoke secured to the side members of said main frame and consisting of supporting side members terminating in anchor points adapted to be driven into the article to be operated upon, and an auger guide h'ead adjustably secured to said side members in proximity to said anchor points.

In testimony whereof we have aiiixed our signatures in presence of two witnesses.

CHARLES F. PENN. FRANK P. RAND.

Witnesses:

L. OBERG, R. L. RIGGINS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. G. 

